西安电子科技大学学报（自然科学版）2018，Vol.45Issue(2)：48-53,6.DOI:10.3969/j.issn.1001-2400.2018.02.009
绳索-金属丝网组合结构力热匹配设计
Mechanical-thermal matching design for the rope-wire mesh composite structure
摘要
Abstract
The reflector of the mesh deployable antenna is made of a flexible rope sewn with a wire mesh. Due to the mechanical-thermal differences between two materials, the deformation of the wire mesh is uncoordinated with fiber ropes,which affects the pre-stress distribution and surface accuracy and degrades the electric performance of the reflector. Therefore, it is of great significance to study the mechanical-thermal matching design for the rope-wire mesh composite structure.In this paper,the rope is modeled as a two-point bar which only bears tension,and the wire mesh is modeled as a membrane.Then the mechanical model of the rope-wire mesh composite structure is established to analyze the influence of thermal deformation,and optimizes the design of cross-section parameter of ropes.Finally,the circular truss mesh deployable antenna is used as a numerical example to demonstrate the feasibility of the mechanical-thermal matching design method.Simulation results indicate the thermostability of the reflector is improved under a variable temperature, and the surface accuracy of the reflector increases by 92%, using the proposed mechanical-thermal matching design method for rope-wire mesh composite structures.关键词
网状可展开天线/绳索/金属丝网/组合结构/力热匹配Key words
mesh deployable antenna/rope/wire mesh/composite structure/mechanical-thermal matching分类
机械制造引用本文复制引用
李团结,杨丽,李洋,马小飞..绳索-金属丝网组合结构力热匹配设计[J].西安电子科技大学学报（自然科学版）,2018,45(2):48-53,6.基金项目
国家自然科学基金资助项目(51775403,U1537213) （51775403,U1537213）
